#include <REGX52.H>
void Delay(unsigned int ms)		//@12.000MHz
{
	unsigned char i, j;
	while(ms--)
	{
		i = 2;
		j = 239;
		do
		{
			while (--j);
		} while (--i);
	}
}
unsigned char NiXieTable[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};
void NiXie(unsigned char Location,unsigned int Number)
{
	switch(Location)
	{
		case 7:P2_4=1;P2_3=1;P2_2=1;break;
		case 6:P2_4=1;P2_3=1;P2_2=0;break;
		case 5:P2_4=1;P2_3=0;P2_2=1;break;
		case 4:P2_4=1;P2_3=0;P2_2=0;break;
		case 3:P2_4=0;P2_3=1;P2_2=1;break;
		case 2:P2_4=0;P2_3=1;P2_2=0;break;
		case 1:P2_4=0;P2_3=0;P2_2=1;break;
		case 0:P2_4=0;P2_3=0;P2_2=0;break;
	}
	P0=NiXieTable[Number];
	Delay(1);
	P0=0x00;
}


void main()
{
	while(1)
	{
		NiXie(0,1);
//		Delay(200);
		NiXie(1,2);
//		Delay(200);
		NiXie(2,3);
//		Delay(200);
		NiXie(3,4);
		//NiXie(4,5);
		NiXie(5,6);
		NiXie(6,7);
		NiXie(7,8);
	}
}